The Hubble Space Telescope just snapped a photo of what may be the farthest galaxy we've ever seen: it's almost 13 billion light-years away.

Since the galaxy is so far away, its light took ages to reach us, so what we see now is a snapshot of how this galaxy looked 13 billion years ago. At that point in time, the galaxy would have been newly formed, so the new observations provide a baby picture.

"We certainly were surprised to find such a bright young galaxy 13 billion years in the past," said astronomer Garth Illingworth of the University of California, Santa Cruz, a member of the research team. "This is the most detailed look to date at an object so far back in time."

And where is that galaxy now? Or 5 billion years ago? Is it possible to see it on more than one position? Could it even be our own galaxy? Are all galaxies maybe one galaxy on different positions in time?I'm a dizzy speck of dust...

If the universe is always expanding, and this is the farthest star that we know about, and that in itself took 13 billion years to reach us - we know that the universe has to be a least 13 billion light years wide - but what is actually the size of the universe now, 13 billion years later?